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/Linux-v4.19/sound/soc/codecs/
DKconfig1 # Helper to resolve issues with configs that have SPI enabled but I2C
2 # modular, meaning we can't build the codec driver in with I2C support.
7 default m if I2C=m
8 default y if I2C=y
22 select SND_SOC_AD193X_I2C if I2C
25 select SND_SOC_ADAU1373 if I2C
26 select SND_SOC_ADAU1761_I2C if I2C
28 select SND_SOC_ADAU1781_I2C if I2C
31 select SND_SOC_ADAV803 if I2C
33 select SND_SOC_ADAU1977_I2C if I2C
[all …]
/Linux-v4.19/Documentation/devicetree/bindings/
Dtrivial-devices.txt12 abracon,abb5zes3 AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface
13 ad,ad7414 SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature …
39 dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
47 devantech,srf02 Devantech SRF02 ultrasonic ranger in I2C mode
54 epson,rx8010 I2C-BUS INTERFACE REAL TIME CLOCK MODULE
55 epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE
64 infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
65 infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz)
66 infineon,tlv493d-a1b6 Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor
74 maxim,max6621 PECI-to-I2C translator for PECI-to-SMBus/I2C protocol conversion
[all …]
/Linux-v4.19/drivers/i2c/
DKconfig2 # I2C subsystem configuration
5 menu "I2C support"
7 config I2C config
8 tristate "I2C support"
12 I2C (pronounce: I-squared-C) is a slow serial bus protocol used in
14 or System Management Bus is a subset of the I2C protocol. More
18 Both I2C and SMBus are supported here. You will need this for
21 If you want I2C support, you should say Y here and also to the
24 This I2C support can also be built as a module. If so, the module
28 bool "ACPI I2C Operation region support"
[all …]
/Linux-v4.19/Documentation/devicetree/bindings/i2c/
Dnvidia,tegra20-i2c.txt1 NVIDIA Tegra20/Tegra30/Tegra114 I2C controller driver.
10 nvidia,tegra20-i2c-dvc: Tegra20 has specific I2C controller called as DVC I2C
11 controller. This only support master mode of I2C communication. Register
12 interface/offset and interrupts handling are different than generic I2C
13 controller. Driver of DVC I2C controller is only compatible with
15 nvidia,tegra20-i2c: Tegra20 has 4 generic I2C controller. This can support
16 master and slave mode of I2C communication. The i2c-tegra driver only
17 support master mode of I2C communication. Driver of I2C controller is
19 nvidia,tegra30-i2c: Tegra30 has 5 generic I2C controller. This controller is
20 very much similar to Tegra20 I2C controller with additional feature:
[all …]
Di2c-imx.txt1 * Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
5 - "fsl,imx1-i2c" for I2C compatible with the one integrated on i.MX1 SoC
6 - "fsl,imx21-i2c" for I2C compatible with the one integrated on i.MX21 SoC
7 - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC
8 - reg : Should contain I2C/HS-I2C registers location and length
9 - interrupts : Should contain I2C/HS-I2C interrupt
10 - clocks : Should contain the I2C/HS-I2C clock specifier
13 - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
30 i2c@70038000 { /* HS-I2C on i.MX51 */
Di2c-mux-gpmux.txt1 General Purpose I2C Bus Mux
3 This binding describes an I2C bus multiplexer that uses a mux controller
4 from the mux subsystem to route the I2C signals.
12 | | I2C |-|--| Mux |
22 - i2c-parent: The phandle of the I2C bus that this multiplexer's master-side
26 * Standard I2C mux properties. See i2c-mux.txt in this directory.
27 * I2C child bus nodes. See i2c-mux.txt in this directory. The sub-bus number
31 - mux-locked: If present, explicitly allow unrelated I2C transactions on the
32 parent I2C adapter at these times:
34 + between setup of the multiplexer and the child bus I2C transaction
[all …]
Dnvidia,tegra186-bpmp-i2c.txt1 NVIDIA Tegra186 BPMP I2C controller
4 devices, such as the I2C controller for the power management I2C bus. Software
6 transactions on that I2C bus. This binding describes an I2C bus that is
9 The BPMP I2C node must be located directly inside the main BPMP node. See
12 This node represents an I2C controller. See ../i2c/i2c.txt for details of the
13 core I2C binding.
20 - #address-cells: Address cells for I2C device address.
28 Indicates the I2C bus number this DT node represent, as defined by the
Di2c-sprd.txt1 I2C for Spreadtrum platforms
7 - interrupts: Should contain I2C interrupt.
9 "i2c" for I2C clock,
10 "source" for I2C source (parent) clock,
11 "enable" for I2C module enable clock.
13 - clock-frequency: Constains desired I2C bus clock frequency in Hz.
14 - #address-cells: Should be 1 to describe address cells for I2C device address.
15 - #size-cells: Should be 0 means no size cell for I2C device address.
18 - Child nodes conforming to I2C bus binding
Di2c.txt1 Generic device tree bindings for I2C busses
4 This document describes generic bindings which can be used to describe I2C
12 - compatible - name of I2C bus controller following generic names
18 The cells properties above define that an address of children of an I2C bus
36 For I2C adapters that have child nodes that are a mixture of both I2C
37 devices and non-I2C devices, the 'i2c-bus' subnode can be used for
38 populating I2C devices. If the 'i2c-bus' subnode is present, only
39 subnodes of this will be considered as I2C slaves. The properties,
44 Number of nanoseconds the SCL signal takes to fall; t(f) in the I2C
51 Number of nanoseconds the SCL signal takes to rise; t(r) in the I2C
[all …]
Di2c-stm32.txt1 * I2C controller embedded in STMicroelectronics STM32 I2C platform
8 - interrupts : Must contain the interrupt id for I2C event and then the
9 interrupt id for I2C error.
11 - clocks: Must contain the input clock of the I2C instance.
13 operation for I2C transfer
18 - clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
24 - i2c-scl-rising-time-ns : Only for STM32F7, I2C SCL Rising time for the board
26 - i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board
28 I2C Timings are derived from these 2 values
Di2c-demux-pinctrl.txt1 Pinctrl-based I2C Bus DeMux
3 This binding describes an I2C bus demultiplexer that uses pin multiplexing to
4 route the I2C signals, and represents the pin multiplexing configuration using
5 the pinctrl device tree bindings. This may be used to select one I2C IP core at
6 runtime which may have a better feature set for a given task than another I2C
14 | |I2C IP Core1|--\ | +-----+ +-----+
18 | |I2C IP Core2|--/ |
25 - i2c-parent: List of phandles of I2C masters available for selection. The first
27 - i2c-bus-name: The name of this bus. Also needed as pinctrl-name for the I2C
30 Furthermore, I2C mux properties and child nodes. See i2c-mux.txt in this
[all …]
/Linux-v4.19/drivers/i2c/muxes/
DKconfig2 # Multiplexer I2C chip drivers configuration
5 menu "Multiplexer I2C Chip support"
9 tristate "GPIO-based I2C arbitration"
14 I2C multimaster arbitration scheme using GPIOs and a challenge &
22 tristate "GPIO-based I2C multiplexer"
26 GPIO based I2C multiplexer. This driver provides access to
27 I2C busses connected through a MUX, which is controlled
34 tristate "General Purpose I2C multiplexer"
39 general purpose I2C multiplexer. This driver provides access to
40 I2C busses connected through a MUX, which in turn is controlled
[all …]
/Linux-v4.19/Documentation/i2c/
Dsummary1 I2C and SMBus
4 I2C (pronounce: I squared C) is a protocol developed by Philips. It is a
8 I2C is widely used with embedded systems. Some systems use variants that
9 don't meet branding requirements, and so are not advertised as being I2C.
11 SMBus (System Management Bus) is based on the I2C protocol, and is mostly
12 a subset of I2C protocols and signaling. Many I2C devices will work on an
14 achieve I2C branding. Modern PC mainboards rely on SMBus. The most common
15 devices connected through SMBus are RAM modules configured using I2C EEPROMs,
18 Because the SMBus is mostly a subset of the generalized I2C bus, we can
19 use its protocols on many I2C systems. However, there are systems that don't
[all …]
Dinstantiating-devices1 How to instantiate I2C devices
4 Unlike PCI or USB devices, I2C devices are not enumerated at the hardware
6 I2C bus segment, and what address these devices are using. For this
7 reason, the kernel code must instantiate I2C devices explicitly. There are
11 Method 1a: Declare the I2C devices by bus number
14 This method is appropriate when the I2C bus is a system bus as is the case
15 for many embedded systems. On such systems, each I2C bus has a number
16 which is known in advance. It is thus possible to pre-declare the I2C
45 The above code declares 3 devices on I2C bus 1, including their respective
46 addresses and custom data needed by their drivers. When the I2C bus in
[all …]
/Linux-v4.19/drivers/i2c/busses/
DKconfig5 menu "I2C Hardware Bus support"
40 Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
50 756/766/768 mainboard I2C interfaces. The driver also includes
51 support for the first (SMBus 1.0) I2C interface of the AMD 8111 and
52 the nVidia nForce I2C interface.
75 second (SMBus 2.0) AMD 8111 mainboard I2C interface.
81 tristate "Hix5hd2 high-speed I2C driver"
84 Say Y here to include support for the high-speed I2C controller
97 801 family of mainboard I2C interfaces. Specifically, the following
164 PIIX4 family of mainboard I2C interfaces. Specifically, the following
[all …]
/Linux-v4.19/drivers/media/tuners/
DKconfig4 …A_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT) && I2C
23 depends on MEDIA_SUPPORT && I2C
31 depends on MEDIA_SUPPORT && I2C
38 depends on MEDIA_SUPPORT && I2C
47 depends on MEDIA_SUPPORT && I2C
54 depends on MEDIA_SUPPORT && I2C
61 depends on MEDIA_SUPPORT && I2C
69 depends on MEDIA_SUPPORT && I2C
76 depends on MEDIA_SUPPORT && I2C
90 depends on MEDIA_SUPPORT && I2C
[all …]
/Linux-v4.19/drivers/media/dvb-frontends/
DKconfig9 depends on DVB_CORE && I2C
17 depends on DVB_CORE && I2C
25 depends on DVB_CORE && I2C
33 depends on DVB_CORE && I2C
42 depends on DVB_CORE && I2C
49 depends on DVB_CORE && I2C
58 depends on DVB_CORE && I2C
67 depends on DVB_CORE && I2C && I2C_MUX
78 depends on DVB_CORE && I2C
87 depends on DVB_CORE && I2C
[all …]
/Linux-v4.19/Documentation/driver-api/
Di2c.rst4 I\ :sup:`2`\ C (or without fancy typography, "I2C") is an acronym for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
10 I2C devices use seven bit addresses, and bus speeds of up to 400 kHz;
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
16 The Linux I2C programming interfaces support the master side of bus
18 structured around two kinds of driver, and two kinds of device. An I2C
22 I2C bus segment it manages. On each I2C bus segment will be I2C devices
26 are functions to perform various I2C protocol operations; at this writing
30 systems are also I2C conformant. The electrical constraints are tighter
32 Controllers that support I2C can also support most SMBus operations, but
[all …]
/Linux-v4.19/drivers/iio/chemical/
DKconfig9 depends on I2C
15 Say Y here to build I2C interface support for the following
26 depends on (I2C || SPI)
28 select BME680_I2C if I2C
34 This driver can also be built as a module. If so, the module for I2C
39 depends on I2C && BME680
49 depends on I2C
53 Say Y here to build I2C interface support for the AMS
58 depends on I2C
60 Say Y here to build I2C interface support for the AMS
[all …]
/Linux-v4.19/drivers/media/i2c/
DKconfig8 tristate "I2C module for IR" if !MEDIA_SUBDRV_AUTOSELECT
9 depends on I2C && RC_CORE
13 some video boards have the IR connected via I2C bus.
15 If your board doesn't have an I2C IR chip, you may disable this
24 menu "I2C Encoders, decoders, sensors and other helper chips"
31 depends on VIDEO_V4L2 && I2C
43 depends on VIDEO_V4L2 && I2C
52 depends on I2C
61 depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
72 depends on I2C
[all …]
/Linux-v4.19/drivers/media/i2c/soc_camera/
DKconfig5 depends on SOC_CAMERA && I2C
12 depends on SOC_CAMERA && I2C
22 depends on SOC_CAMERA && I2C
28 depends on SOC_CAMERA && I2C
34 depends on SOC_CAMERA && I2C
40 depends on SOC_CAMERA && I2C
46 depends on SOC_CAMERA && I2C
52 depends on SOC_CAMERA && I2C
58 depends on SOC_CAMERA && I2C
64 depends on SOC_CAMERA && I2C
/Linux-v4.19/drivers/i2c/algos/
DKconfig2 # I2C algorithm drivers configuration
5 menu "I2C Algorithms"
9 tristate "I2C bit-banging interfaces"
12 tristate "I2C PCF 8584 interfaces"
15 tristate "I2C PCA 9564 interfaces"
/Linux-v4.19/sound/soc/samsung/
DKconfig45 depends on MACH_JIVE && I2C
54 depends on I2C
62 depends on I2C=y
83 depends on ARCH_S3C24XX && I2C
90 depends on ARCH_S3C24XX && I2C
97 depends on ARCH_H1940 && I2C
105 depends on MACH_RX1950 && I2C
115 depends on I2C
127 depends on I2C=y
136 depends on I2C && SPI_MASTER
[all …]
/Linux-v4.19/Documentation/i2c/busses/
Di2c-diolan-u2c4 * Diolan U2C-12 I2C-USB adapter
13 This is the driver for the Diolan U2C-12 USB-I2C adapter.
15 The Diolan U2C-12 I2C-USB Adapter provides a low cost solution to connect
16 a computer to I2C slave devices using a USB interface. It also supports
19 This driver only supports the I2C interface of U2C-12. The driver does not use
26 * frequency: I2C bus frequency
/Linux-v4.19/drivers/iio/pressure/
DKconfig10 depends on I2C
19 tristate "Bosch Sensortec BMP180/BMP280 pressure sensor I2C driver"
20 depends on (I2C || SPI_MASTER)
22 select BMP280_I2C if (I2C)
30 will be called bmp280 and you will also get bmp280-i2c for I2C
36 depends on I2C
71 depends on I2C
85 depends on I2C
89 pressure sensor connected via I2C.
107 depends on I2C
[all …]

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